80409490

素因数分解:

$2^1\times 5^1\times 7^4\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:249

約数の個数: 80

約数和(自身を含む): 179689752

約数和(自身を除く): 99280262

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 49, 70, 85, 98, 119, 170, 197, 238, 245, 343, 394, 490, 595, 686, 833, 985, 1190, 1379, 1666, 1715, 1970, 2401, 2758, 3349, 3430, 4165, 4802, 5831, 6698, 6895, 8330, 9653, 11662, 12005, 13790, 16745, 19306, 23443, 24010, 29155, 33490, 40817, 46886, 48265, 58310, 67571, 81634, 96530, 117215, 135142, 164101, 204085, 234430, 328202, 337855, 408170, 472997, 675710, 820505, 945994, 1148707, 1641010, 2297414, 2364985, 4729970, 5743535, 8040949, 11487070, 16081898, 40204745, 80409490]

約数ペア:

[(1, 80409490), (2, 40204745), (5, 16081898), (7, 11487070), (10, 8040949), (14, 5743535), (17, 4729970), (34, 2364985), (35, 2297414), (49, 1641010), (70, 1148707), (85, 945994), (98, 820505), (119, 675710), (170, 472997), (197, 408170), (238, 337855), (245, 328202), (343, 234430), (394, 204085), (490, 164101), (595, 135142), (686, 117215), (833, 96530), (985, 81634), (1190, 67571), (1379, 58310), (1666, 48265), (1715, 46886), (1970, 40817), (2401, 33490), (2758, 29155), (3349, 24010), (3430, 23443), (4165, 19306), (4802, 16745), (5831, 13790), (6698, 12005), (6895, 11662), (8330, 9653)]